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Phys. Rev. Lett. 96, 025003 (2006) [4 pages]Interaction of Light Filaments Generated by Femtosecond Laser Pulses in Air
Received 27 June 2005; published 20 January 2006
The interaction of two light filaments propagating in air is simulated. Simulations show that the interaction of the two light filaments displays interesting features such as attraction, fusion, repulsion, and spiral propagation, depending on the relative phase shift and the crossing angle between them. A long and stable channel can be formed by fusing two in-phase light filaments. The channel becomes unstable with the increase of the crossing angle and phase shift. The interaction of two light filaments in different planes is studied and the spiral propagation is observed. ©2006 The American Physical Society
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